And joseph p



(No Model.)'

1). H. DOR'SETT & J. P. ELLAOOTT.

ASPHALTUM CONCRETE MIXER.

' No. 269,026. Patented Dec. 12, 1882. i

CKe e 0.

- Inventor m UNITED STATES PATE T OFFICE.

DANIEL H. noasnrr, or CLINTON, IOWA, AND JOSEPH P. ELLACOTT, or I CHICAGO, ILLINOIS.

ASPHALTUM-CONCRETE MIXER.-

SPECIFIGATION forming part of Letters Patent No. 269,026, dated December 12, 1882,

Application filed February 17, 1882. (No model.)

To all whom it may concern:

Be it known that we, DANIEL H. DORSETT, of Clinton, county of Clinton and State of Iowa, and JOSEPH P. ELLAGOTT, of Chicago, inthe county of Cook and State of Illinois, have invented a new and useful Improvement in Asphaltum-Goncrete Mixers, of which the following is a specification.

Cur invention relates to a mixer for concrete in which asphallum or a similar substance forms a cementing base.

The object of our invention is to provide a mixer having ajaeketed mixing-pan in which the asphaltum concrete is kept at the required temperature by the application of steam, and thoroughly mixed in the manner substantially as hereinafteirfnlly described.

To this end our invention consists in an arrangement of parts, as will be fully understood from the following description, with reference to the accompanying drawings, in which-- Figure 1 is a-plan view of our improved mixer with the top removed. Fig. 2 is a sectional elevation of the same.

Similar letters refer to similar parts throughout the several views.

A is a circular mixing-pan, constructed of boiler-iron or other suitable material, and provided with a steam jackenB.

Extending through the steam'jacket B at the bottom and opening into the mixing-pan A is a thimble, a, through which passes a shalt, S, to the upper end of which is secured a mixing-rake,C.

Fitting tightly around the thimble a and secured to the bottom of the mixing-pan A is as shown. in Fig. l, and so arranged that as the rake is revolved in the direction of the arrows those, 0, on one end of the rake tend to throw the material being mixed toward the center of the pan, while those, 0, on the other end tend to reverse it or throw it in the opposite direction, thus thoroughly mixing the entire mass.

i Across the top of the pan A is a bar, E, to.

which are hinged ateach side doors I) D.

Leading from the pan A through the bar E, at one side of the center, is a pipe, 'P, which may be connected with a chimney, ventilatingflue, or otherwise for the purpose of carrying off the fumes arising from the heated concrete while being mixed.

TllGIDlXt-EI' may be made to rest directly on the floor, with the shaft S extending through the floor, and provided below with beveled gearing or other suitable mechanism for revol ring the rake.

The concrete to be mixed is placed in the pan A through the doors D D. Said doors are then closed and steam admitted through suit able pipes to the steam-jacket B. The mixing-rake C is revolved through shaft S and the concrete thoroughly mixed, the fumes escaping through pipe P.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, isv The combination of thernixing-pan A, steamjacketB, vertical shaft S,thimb1e a, and sleeve b, forming bearings for said shaft, rake C, se-

cdred to the shalt and having teeth 0 c, the cross-bar E, with lids D D, hinged thereto, and the ventilating-pipe P, all substantially as and forthe purpose described.

DAN [EL H. DORSETT. JOSEPH P. ELLAOCTT. Witnesses:

H. HARRISON, FRANK JOHNSON. 

